Flow and Thermal Performances of Pin Fin Heat Sink

Abstract

The current work bolds hexagonal and cylindrical pin fin arrays at 50°C on a horizontal base plate. This, along with the transfer of heat of fiction characters of cylindrical fin, was studied experimentally with the help of a rectangular wind tunnel. Inline and staggeredarrangements are to be made with pin fins. Finding the impact of fin distance in both span and stream directions must be done. Maintaining constant values for both the relative span pitch (Sx/d=1.2) and reactive stream wise pitch (Sy/d = 1.2, 2.4, and 3.6) is recommended. The research uses varying air mass flow rates (Re varies between 2000 and 280000). The clearance rate (C/H = 0.0) greatly affects the pin's performance, which makes the hexagonal fin conduct heat more rapidly than the cylindrical fin.The experiment's findings demonstrate that, for a given pumping power, the optimal inter-fin pitch, Sx/d=1.2 and Sy/d=1.2, are determined by looking for the greatest Nusselt number.